Extensions are like apps for Firefox.
They add features to Firefox to make browsing faster, safer, or just plain fun.
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing.
Automatically learns to block invisible trackers.
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
Override the user-agent string presented to Google Search pages to receive the search experience shown to Chrome.